PDF malware analysis — malicious · dff9b5873e882eef

MALICIOUS

PDF

83.3 KB Created: 2021-09-03 10:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: 727c60affc980bf6f3903755f482e08b SHA-1: 484eb4223bd7b842b43a8eb42e2dc8ee2464c1ec SHA-256: dff9b5873e882eef7abd3f7da33bb72d7285bb353abdb43daff72f45ca03a049

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external URIs and is flagged as a link farm, indicating a likely phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, classifying it as Pdf.Phishing.Trojan. While no scripts were explicitly extracted, the structure and URL patterns are consistent with malicious PDFs designed to redirect users to compromised sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9860

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://allytemp.ru/uplcv?utm_term=toyota+kluger+2015+owners+manual PDF link annotation
- http://www.ipkameralari24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c7a3336d0---29794098353.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/r2u4cfv3cqd711ko5203nstqtl/wuvukewegi.pdfIn PDF document text
- http://juliesfundforkids.com/clients/d/d6/d6f17a7a4e9d342a12f8f8eeddb80b2d/File/vuratejojamiro.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/tavenakidafokoj.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f06ab0660e0---zajuravaxixurisukepapev.pdfIn PDF document text
- https://gites-les-bardots.com/userfiles/file/veben.pdfIn PDF document text
- http://bloomx.com/sites/all/sites/bloomx.com/files/58771672363.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/teliwuxefozufoxozilovub.pdfIn PDF document text
- http://askort.pl/Upload/file/65501700474.pdfIn PDF document text
- https://dom4m.lv/userfiles/files/sesemizixebimilej.pdfIn PDF document text
- http://ihdbd.org/upload/files/zepuzuvupexabim.pdfIn PDF document text
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/2d2c47c92b21abf0c6284654538a7e5d/teveta.pdfIn PDF document text
- https://rails-bg.com/fckeditorfiles/file/84692622869.pdfIn PDF document text
- https://theurbanthinktank.com/files/72494313301.pdfIn PDF document text
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/oiddmaasunuea07r5ksu5k7cik/xevisexagagesidagobuvoduk.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d184022ef40---bijetegaxiliwafofejuguz.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f0d66d635---nobobadifawo.pdfIn PDF document text
- http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/sowizuwipubefujuvujera.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/6fc650e1902bc6dd7c19e032f2c3e25d/52484028110.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/30565681273.pdfIn PDF document text
- https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/10842710752.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/dixekadakopapam.pdfIn PDF document text
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/8mmjac3c8l7vfmm3q92g854jsv/43781905799.pdfIn PDF document text
- https://jbdclothiers.net/emailer/userfiles/file/81949221073.pdfIn PDF document text
- http://be1971.com/clients/a/a1/a19be2fc4cf8b198b52f296748481ce5/File/fobasutarenawewifimudak.pdfIn PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/cb040784d071b2f1bbb9f1c602b97a81/bomoder.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dd7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD7D	11140 bytes
SHA-256: `73b707e9e49b0348a10bdd7a13d53a1a05a6b13b24b3aad483eaefa59c87bb28`
`font_01_sfnt_off0000f7ca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7CA	17932 bytes
SHA-256: `e0eed3b93b3f5d2c22c018536785f9b2d628626ab49f70539a924263f062044a`
`font_02_sfnt_off00012724.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12724	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.